Accused movie theater mass murderer James Holmes is nuts — but prosecutors are dragging their heels turning over evidence that shows how deep his “mental illness” runs, his lawyers complained yesterday.

“We as a defense team cannot begin to examine the nature or depth of Mr. Holmes’ mental illness until we receive full disclosure,” Holmes defense lawyer Daniel King told a Colorado judge yesterday.

The flame-haired Holmes showed no reaction as he made his third court appearance since allegedly opening fire with an arsenal of weapons at a July 20 Batman movie premiere, killing 12 and injuring 58.

Prosecutors countered that they are working as fast as they can, and still haven’t completed all their interviews and paperwork.

The hearing was called so that lawyers for a group of 20 media organizations could argue to unseal court documents in the case. Currently, nearly all the documents in the Holmes file — including the record that shows what documents have been filed — is closed.

The news groups contend that the sweeping order to seal violates the public’s right to access of criminal proceedings.

The judge is expected to rule on the motion to unseal by Monday.

Also yesterday, Holmes’ landlord — who previously told reporters that the one-time neuroscience PhD candidate was being booted from his apartment because he’d dropped out of school, violating his lease — filed eviction papers. He claimed Holmes broke his lease when he booby-trapped the joint with trip wires and explosives.